Platen mechanism.



J. G. H. 'BURBMl PLATBN MEGHAMSM,

APPLICATION FILED AUG.20,1913.

Patented Jung 2, 1914.

3 SHEETS-SHEET l.

Inventor,

Witnesses J. G. H, BURBOA.

PLATEN MBGHANISM.

APPLICATION FILED Ammo, 191s.

gy :105298, 556q Patented June 2, 1914.

' s SHEETS-s112212,

ffy,

viii-messes APPLICATION FILE'D AUG.20, 1913.

J. G. H. BURBGA.

PLATEN MEQHANSM.

Patented June 2, 1914.

3 SHEETS-SHEETS.

OOO

Inventor,

Afom MIS JV'U'AN G. HOLGUIN BURBOA, 0F HERMOSLLO, MEXICO.

PLATEN ME CHANISM.

Specification of Letters Patent. y

rafentedaune 2; 1914,.A

Original application filed February 13, 1913, Serial No. 748.219. Divided and this application led August l 20,1913. serial No. 785,76?. y

To all yLU/0m- 'it 'may concer-n.

Be. it known that. I, JUAN Gr. HOLGUIN` .l/Iechanism, of whic-h the following is a,

y specification.

lhc present invention relates to improvements n1 typewritmg machines, and more particularly t0 the mechanism for imparting p rotary movement to the. platen for let-ter spacing' and longitudinal movementI for line I. spacing, the present application beingr a divisional application ot' my copending application filed' February 1?, 1913, Seria-l No. T4-8.219, one object ot the invention, being the. provision of means whereby a vertically movable platen has imparted vertical movement thereto for linc spacing and rotary movement thereto for letter spacing, the platen being' heldin a 'vertical position at all times.

Tith the Aforegoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed.l it. bein;Y understood that. changes in the precisc'embodiment of the intention herein disclosed can be made within the scope of what is claimed withonl departing iro'm the spirit ot the invention.

ln the drawings Figure l is a diagrammatic perspective and sectional view taken trom the rear ot a. typcivritingl machine showing the main motor and the.' control mechanism For rotating and vertically movin;y the platen. Figi. Q'is a cross sectional vien' through the main casing' ot' a'typeivrit- '.inp,r machine ata point below the. type basketvshowing the position of the various selectors.

the operating motors and the platen. 4Fig. l 'is a central vertical cross sectional View through the easingl with a greater portion of the type basket removed. the platen and carriage being shown vin elevation.' Fig. 4 is a diagrammatic plan view ot' the various mechanisms for cont-rolling the rotation o t' the platen and adjacent mechanisms of the typewriting machine. detailed end elevationof the platen.'sho\v ing,` the mechanism tor imparting intermittent rotary movement for letter spacing. Figs. (3 and "T are enlarged detail views oi' Fig. 5' is an enlargedv a portion of the letter Ispacing mechanism. Figs. 8, 9, 10, 11, 12 and 13 are detail views illustrating the construction and arrangement of the mot-ors and motor controls, for imparting .vertical line spacingff'movement to the platen. i

.n Referrlng to the drawings, tlie numeral 1 designates'the frame of a typewri'ting machine, .which has mounted therein a plurality of selectors 2, by means of which the vacuum effect is transmitted to the desired mechanism of the typewriting machine, the

keys 3 controlling the selectors or any combination thereof so that. the air displaced by the motors 4 through the vacuum chamber 5, will properly efect the desired mechanism, and .as particularly set forth in the above mentioned application.

The platen 13A is ,disposed for vertical f movement instead of the usual horizontal movement for producing writing from the top to the bottom of the page, while the same is rotated horizontally during the writinf,r of Aa line, thel same being actuated a space or a number of s aces at. a time according to the number o type thatfare presented to the platen through the actuation of the keys and combinations thereof.

A. lon-'er cross-bar 57 is connected by means of the two vertical rods 58 to the upper cross-bar 59, each of the rods 58 being movable and journaled for vertical sliding movement within the stationary or fixed tubes GO mounted properly Within the casing, The axle G1 of the platen 13 is journaled in the cross-bars 57. and 59 for rotation while the bars or rods'58 are mounted `within the tubest() for vertical "movem'en't.

nected to the frame and cross bar' 57v to elespace tor ther presentation of a type thereto.

atteithc actuation of the type bar control V ling 'keys oi the machine, the mbtors 62 and "G3, which' are of lthe suction bellowsI type` are provided, and have their control through the vaeuumchalnher Bland the selector i2. oneot the levers t9 being the control there tor. .so that theseniotors (1Q willb'ojop large gear 79 to the lon 1 i'ated to operate the crank shaft 64 which is Journaled in the respective bearings and 66. As clearl)T shown in Fig'. 1, there isy i per gear 73, which is at that time in mesh with the' ear 74 u onthe lower end of the vertical s aft 75, t is vertical shaft hay; ing keyed upon it, the intermediate gear 76 for actuating the escapement 82, as will presently appear, and the upper gear 77, which constitutes the mainioperating gear for the rotation of the platen 13, the dial 202,'- and the marginal control 206. i'

A lorear 78 is in mesh at all times with the gear la77 and transmits mot-ion through the vertical gear 80 which is disposed vertica y of the machine and in mesh at all times with the gear .81, connected. to the platen 13 and its s iaft.6`l so that regardless of the position of the platen relatively to the casing in its vertical up and down movement, the ear 81 will cause the desired rotation of t e platen to present a new space for the presentation thereto of the type. By reason of the fact that the lever 42 with the selector 2 for actuating the motors 62 and 63, are operated at all times through one of the levers 40 controlled by any one of thekeys 3, the platen 13 will be rotated one space for each type, but should four t pe be presented, the motors 62 and 63 wi l be actuated to impart to the platen 13 a movement equal tofive spaces which constitute the four spaces for each type and the extra` space between the type for the next space to be printed.

In order to provide a means for indicating at a glance the position of the plateni'elatively to the type line being printed, a gear 200 is in mesh at all times with the gear 201 which actuates the dial 202 disposed at the forward upper edge of the machine and in ready view of the operator.

The control device for the respective motors 62 and 63 is clearly shown in Figs. 8 through 13, and includes the two stationary plates 301 and 302 which have mounted for oscillation therebetween, the controlling rof tatory disk 303, the tubes beiii'gvled from the vacuum chamber 5 to the'ports of the disk 301 and tothe motors 62 and 63 through the respective tubes 62 and 62 and 63 and 63 to the disk 302, the rotatory disk 303 bein provided with the recessed portion, as clear y shown in Fig. 12, so as to canse the interlinking or intere-onnnunication between the respective tubes 62 o1' 62 or 63 or 63 to impart the necessary action to the movable bellows of the motors 62 and 63, respec" tively, and conse uently canse thedesired .actuation of the s aft 64.'.

In order to operate the platen carriage to impart to it the necessary upward vertical movement, due to the line spacing and also to impart to itthe descending vertical movement during the change from a written page to` a new page, the shaft 69 must be swung so as to disengage the gear 73 from the gear 74 andthe gear 68 from the gear 67, this being affected through the motor 83, controlled throu h the selectorr2, said motor 83 being operab connected to the bell crank lever 84 whic is connected to the sliding block 85 mounted upon the two spaced pinsl 86 of the support 72. This block 85 has the shaft 69 journaled therethrough and when moved b the motor 83, causes the position ing of t e ar 87 into mesh with the gear 88, so that t e shaft A69 is rotated to actuatc the gear 89, and ds the bevel ar 89 is placed in mesh with the bevel gear O, the shaft 91 journaled inlthe bearings 92 and carrying the gear or pinion 93 is rotated. This rotation controls the motion to the toothed rack 94 of the platencarriage, said rack being disposed between the cross-bars 57 'and 59, and causes the platen carriage to be elevated the 'desired spaces, as for instance, one line, two lines or three lines, or will vcause movement downwardly of the platen 13- from its highest toits lowest point upon the i presentation of a new page.-

The escapement mechanism for permitting the movement of the carriage and platen due to the shifting from one line to the next and for varying aces as for instance one, two and three aces, 'consists of the toothed rack95 carr ed at the opposite side of the platen to the rack 94, t e same havingl in mesh therewith at all times, the gear 96 carried upon the swinging shaft 96 the block 97 bein constructed and arranged accordingl to t e sliding block 97 for swingin the shaft and placing the gear 96 into an out of engagement with the rack 95 according to the actuation of the motor 99 and conseq'uentlythe desired spacing required. The

block 100 is the swingingly journaled blockV for the shaft 96', while the escapement 101, shown at the right in Fi 1 and which is constructed similarly to t c escnpeinent 82, is rovided for actuating the shaft 96', or rat er controlling the actuation thereof, to permit the movement of thc platen and carriage the desired and selected spacing distance from one line to the next.

In order to permit the upward and down-l ward movement of the carini ge, the adjustable marginal stop 102 with the pneumatic bu'er 103 isprovided to be engaged by the lil cr0ss-bar 59 when the carriage is returned romvits extreme upper to its lowermost position upon the presentation of a new page,-

rvvhile the adjustable marginal stop 104 and its projecting end 105 is provided to engage` scribed, may be rotated a single space or up i to tivespaccs in the present instance. an escapement device. -as clearly illustrated in Figs.' 5, (i and 7 :is provided, this cscapement device also being similar to'thc device 101 for controlling the vertical movement of the platen carriage, both of such devices being constructed for control 'from the key board and through the vacuum chamber 5, The gear 70 in thisiinstance as before stated, is geared to the rotatable casing 82 of the escapement device 82 and this casing is providedwith the teeth 107 and the facial pins 108. Aixed, frame 109 is provided with the two parallel rods 110 upon which are slidably mounted, the sleeves 111 which-bodily carry the pawl carriage 112, the fixed lug 113 being connected to one end of the carriage and having fast thereto, a pin 114, which forms a journal for the points 115 of the respective tooth engaging pawls 116, 117 and 118, there being a single pawt 116 formed integral with the lug 113, a plurality`of tour intermediate pawls 117 and a single flexible pawl 118. This finger 118 .is provided with the fiexing end 119. which is normally held alined with the main body of the finger 118 by means of the` spring 120. Each of the respective pawls 118 and 117 are provided with a pin 121. which overlaps the -adja-cent pawl, as clearly shown in Fig.

so that the fixed pawl 117 limits the movement of the respective pawls in the directlon of the arrow Fig. 5 and consequently in aA positiontor engaging' the teeth 107 to lock the disk 82 against rotation. The springs 119f are connected to the lug various movable pawls 117 and 118 to form a resilient means for permitting the back stepping or back spacing ot thedisk 82 and. consequently the platen 1? by means of the back spacing motor 129 which is provided with the exing pawl 130 connected by the.

pivoting lug 131 to the movable section 132. of the'motor. This operation'is controlled from the key board to back space the disk 82 one space as desired, and as illustrated-in dotted l-incs Fig. 5. -i

in order to control thc actuation oi the carriage 112. the .same hcing manipulated in 1.18 of the its normal position by means ot' the spring 125. with the paal 110 in engagement. with one oli thc teeth 10T tn uutintam the disk 82 .platen 13.

in the desired position, and so as to bring one of the respective teeth 117 or the fiexing tooth 1.18 in engagement with one of the teeth 107 to permit' ot' the movement of 'the disk 82 and consequently the platen 13 the desired number of spaces, the tiexible connection or cord 122 is trained over the rollers 123 and 124- and has one end connected to the carriage 112 to move thesame againstV the tension ot thc spring 125. this structurebeing clearly illustrated in Figs. 5 and 0. This tiexiblc connection 122 connected to the pivoted bail or level' 126. carried upon the 'shaft 12T within the casing, this bail o r lever 12o being operably connected to the controlliim members ot' the respective motors .128. there being tive of these motors each o1 a different magnitude of movement, so as to control the relative movements of the lever 126 and consequently the diiier-- ence ot pull upon the cord 122 so as t0 presentthc selected one ot the respect-ive pawls A118, 11T or 11G, to its respective tooth` 10T of the dial 82 and thus consequently permit the necessary movement of the By this means, it will be seen that the actuation of the selector 2, due to the movement of any one of the levers 42 will control the actuation of anyone of the motors 128, or any number thereof, so-as to properly actuate the lever 126 and the respective-pawls 118, 117 and 116, so that the cscapcmentI drum-82 will be permitted to movethe desired distance through its motor controls 02 and (-33 heretofore described.

lVhat is claimed is:

1. A typewriter, including a frame, a 'vcrtically reciprocatory carriage, a horizontally rotatable platen mounted therein, a motor actuated lmeansv for elevating the carriage, a plurality of selective motor actuated. means for rotating the platen one or more spaces at a time, and -motor actuated means for returning the carriage.

2. A typewriter, including a frame, a vertically reciprocatory arriage, a horizontally rotatable platen mounted therein,a 'plul' rality of selective motor actuated means forw rotating the platen one or more spaces at a time, a motor actuated means for elevating the, carriage, a motor: actuated means for returning the carriage, and selective means for causing the individual actuation of any ot' the motors.

3. A typewriter, including a fran1e,`a. vertically reciprocatory carriage, a horizontally rotatable platen mounted therein, a motor actuated means tor elevating the carriage, a plurality ot selective motor actuated means for vrotating the platen oneor more spaces at the time, motor actuated means for returning the carriage, a plurality of type hars. a plurality ot vdepressible keys for aciis.

touting thetype hars. meansopcrably eontion of a selected platen rotating motor concideutly with the depression of a key, key actuated means for operating the motor actuated means for elevating the carria e, and key actuated means for operating t e mo- `mrjactuated means to return the carriage.

LJ typewriter, including a frame, a r0 retable platen, a vertically reciproeatory carriage carrying the platen, a plurality of mo ter actuated means for im artin'g varying latitudes of rotationI to t e platen, and

selective ydevices for bringing into play one of the motor actuated means to cause a predetermined movement to the carriage during line shifting.

Atypewriter, including a frame, a ro- 

